using AutoMapper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using IStation.Untity;

namespace IStation.Service
{
    /// <summary>
    /// Menu
    /// </summary>
    public partial class Menu
    {
        #region Cache

        private List<Model.Menu> GetCache()
        {
            return MenuCacheHelper.GetSet(() =>
            {
                var dal = new DAL.Menu();
                var entity_list = dal.GetAll();
                var model_list = Entity2Models(entity_list);
                if (model_list == null)
                {
                    model_list = new List<Model.Menu>();
                }
                return model_list;
            }, ConfigHelper.KeepCacheTime, ConfigHelper.RandomCacheTime);
        }

        private void UpdateCache(long ID)
        {
            var dal = new DAL.Menu();
            var entity_rhs = dal.GetByID(ID);
            var model_rhs = Entity2Model(entity_rhs);
            var all = GetCache();
            var model = all.Find(x => x.ID == ID);
            if (model == null)
            {
                all.Add(model_rhs);
            }
            else
            {
                model.Reset(model_rhs);
            }
        }

        private void UpdateCache(List<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return;
            var dal = new DAL.Menu();
            var entity_list = dal.GetByIds(Ids);
            var model_list = Entity2Models(entity_list);
            var all = GetCache();
            all.RemoveAll(x => Ids.Contains(x.ID));
            if (model_list != null && model_list.Count > 0)
            {
                all.AddRange(model_list);
            }
        }

        private void RemoveCache(long ID)
        {
            var all = GetCache();
            all.RemoveAll(x => x.ID == ID);
        }

        private void RemoveCache(List<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return;
            var all = GetCache();
            all.RemoveAll(x => Ids.Contains(x.ID));
        }

        #endregion

        #region Query

        /// <summary>
        /// 获取所有
        /// </summary>
        public List<Model.Menu> GetAll()
        {
            var all = GetCache();
            return all.OrderBy(x => x.ParentIds.Count).ThenBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 通过 Soft 获取
        /// </summary>
        public List<Model.Menu> GetBySoft(string SoftType, string SoftTag)
        {
            var all = GetAll();
            var list = all.Where(x => x.SoftType == SoftType && x.SoftTag == SoftTag).ToList();
            return list.OrderBy(x => x.ParentIds.Count).ThenBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 通过 ID 获取
        /// </summary>
        public Model.Menu GetByID(long ID)
        {
            var all = GetAll();
            return all.Find(x => x.ID == ID);
        }

        /// <summary>
        /// 通过 Ids 获取
        /// </summary>
        public List<Model.Menu> GetByIds(List<long> Ids)
        {
            if (Ids == null || Ids.Count() < 1)
                return default;
            var all = GetAll();
            var list = all.Where(x => Ids.Contains(x.ID)).ToList();
            return list.OrderBy(x => x.ParentIds.Count).ThenBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 获取自身及子项
        /// </summary>
        public List<Model.Menu> GetChildAndSelfByID(long ID)
        {
            var all = GetAll();
            var list = all.Where(x => (x.ID == ID) || (x.ParentIds != null && x.ParentIds.Contains(ID))).ToList();
            return list.OrderBy(x => x.ParentIds.Count).ThenBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 获取子项
        /// </summary>
        public List<Model.Menu> GetChildrenByID(long ID)
        {
            var all = GetAll();
            var list = all.Where(x => x.ParentIds != null && x.ParentIds.Contains(ID)).ToList();
            return list.OrderBy(x => x.ParentIds.Count).ThenBy(x => x.SortCode).ToList();
        }

        /// <summary>
        /// 是否包含子项
        /// </summary>
        public bool HasChildren(long ID)
        {
            var all = GetAll();
            return all.Exists(x => x.ParentIds != null && x.ParentIds.Contains(ID));
        }

        #endregion

        #region Insert

        /// <summary>
        /// 插入一条数据
        /// </summary>
        public long Insert(Model.Menu model)
        {
            if (model == null)
                return default;
            var dal = new DAL.Menu();
            var entity = Model2Entity(model);
            var id = dal.Insert(entity);
            if (id > 0)
            {
                UpdateCache(id);
            }
            return id;
        }

        /// <summary>
        /// 插入多条
        /// </summary>
        public bool Inserts(List<Model.Menu> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            var dal = new DAL.Menu();
            var entity_list = Model2Entities(list);
            var ids = dal.InsertsR(entity_list);
            if (ids != null && ids.Count > 0)
            {
                UpdateCache(ids);
                return true;
            }
            return false;
        }

        #endregion

        #region Update

        /// <summary>
        /// 更新一条
        /// </summary>
        public bool Update(Model.Menu model)
        {
            if (model == null)
                return default;
            if (model.ID < 1)
                return default;
            var dal = new DAL.Menu();
            var entity = Model2Entity(model);
            var bol = dal.Update(entity);
            if (bol)
            {
                UpdateCache(model.ID);
            }
            return bol;
        }

        /// <summary>
        /// 更新多条
        /// </summary>
        public bool Updates(List<Model.Menu> list)
        {
            if (list == null || list.Count() < 1)
                return default;
            if (list.ToList().Exists(x => x.ID < 1))
                return default;
            var dal = new DAL.Menu();
            var entity_list = Model2Entities(list);
            var bol = dal.Updates(entity_list);
            if (bol)
            {
                UpdateCache(list.Select(x => x.ID).ToList());
            }
            return bol;
        }

        /// <summary>
        /// 更新排序码
        /// </summary>
        public bool UpdateSortCode(long ID, int SortCode, long UpdateUserID, DateTime UpdateTime)
        {
            if (ID < 1)
                return default;
            var dal = new DAL.Menu();
            var bol = dal.UpdateSortCode(ID, SortCode, UpdateUserID, UpdateTime);
            if (bol)
            {
                UpdateCache(ID);
            }
            return bol;
        }

        /// <summary>
        /// 更新排序
        /// </summary>
        public bool UpdateSorter(List<Model.TraceSorter> sorters)
        {
            if (sorters == null || sorters.Count() < 1)
                return default;
            var dal = new DAL.Menu();
            var bol = dal.UpdateSorter(sorters.ToEntityList());
            if (bol)
            {
                UpdateCache(sorters.Select(x => x.ID).ToList());
            }
            return bol;
        }

        /// <summary>
        /// 更新树排序码
        /// </summary>
        public bool UpdateTreeSortCode(long ID, List<long> ParentIds, int SortCode, long UpdateUserID, DateTime UpdateTime)
        {
            if (ID < 1)
                return default;
            var dal = new DAL.Menu();
            var bol = dal.UpdateTreeSortCode(ID, TreeParentIdsHelper.ToString(ParentIds), SortCode, UpdateUserID, UpdateTime);
            if (bol)
            {
                UpdateCache(ID);
            }
            return bol;
        }

        /// <summary>
        /// 更新树排序
        /// </summary>
        public bool UpdateTreeSorter(List<Model.TraceTreeSorter> sorters)
        {
            if (sorters == null || sorters.Count() < 1)
                return default;
            var dal = new DAL.Menu();
            var bol = dal.UpdateTreeSorter(sorters.ToEntityList());
            if (bol)
            {
                UpdateCache(sorters.Select(x => x.ID).ToList());
            }
            return bol;
        }

        /// <summary>
        /// 更新使用状态
        /// </summary>
        public bool UpdateUseStatus(long ID, Model.eUseStatus UseStatus, long UpdateUserID, DateTime UpdateTime)
        {
            if (ID < 1)
                return default;
            var dal = new DAL.Menu();
            var bol = dal.UpdateUseStatus(ID, (int)UseStatus, UpdateUserID, UpdateTime);
            if (bol)
            {
                UpdateCache(ID);
            }
            return bol;
        }

        /// <summary>
        /// 更新 TagName
        /// </summary>
        public bool UpdateTagName(long ID, string TagName, long UpdateUserID, DateTime UpdateTime)
        {
            var dal = new DAL.Menu();
            var bol = dal.UpdateTagName(ID, TagName, UpdateUserID, UpdateTime);
            if (bol)
            {
                UpdateCache(ID);
            }
            return bol;
        }

        #endregion

        #region Delete

        /// <summary>
        /// 通过 ID 删除
        /// </summary>
        public bool DeleteByID(long ID, out string Msg)
        {
            Msg = string.Empty;
            if (HasChildren(ID))
            {
                Msg = "包含子菜单";
                return default;
            }
            if (new RoleMenuMapping().IsExistByMenuID( ID))
            {
                Msg = "已配置角色授权";
                return default;
            }
            var dal = new DAL.Menu();
            var bol = dal.DeleteByID(ID);
            if (bol)
            {
                RemoveCache(ID);
            }
            return bol;
        }

        #endregion


    }
}